Module 1

Question 1

Assignment operator in Python

Answer 1

symbol is “=”
type of Binary operator that helps in modifying the variable to its left with the use of its value to the right

Question 2

Arithmetic Operations

Answer 2

basic calculations made in daily life (+, -,*, /)

Question 3

Array of numbers

Answer 3

set of #s or objects that follow a pattern presented as an arrangement of rows and columns to explain multiplication

Question 4

Backslash

Answer 4

escape character used in Python strings to indicate that the character immediately following it should be treated in a special way (i.e. escaped character or raw string)

Question 5

Boolean

Answer 5

Denoting a system of algebraic notation used to represent logical propositions by means of the binary digits 0 (false) and 1 (true)

Question 6

Colon

Answer 6

represents an indented block
also used to fetch data and index ranges or arrays

Question 7

Concatenate

Answer 7

Link (things) together in a chain or series
s1 = Hello
s2 = world
concatenated_string = s1 + s2
result = Hello world

Question 8

Data engineering

Answer 8

turning raw data into information that an organization can understand and use by blending, testing, and optimizing data from numerous sources

Question 9

Data science

Answer 9

interdisciplinary field that focuses on extracting knowledge from data sets which are typically huge in amount
encompasses analysis, preparing data for analysis, and presenting findings to inform high-level decisions in an organization

Question 10

Data type

Answer 10

type of value a variable has and what type of mathematical, relational, or logical operations can be applied without causing an error

Question 11

Single and Double Quote

Answer 11

symbol ‘ ‘ and “ “
used to represent strings in Python

Question 12

Escape sequence

Answer 12

two or more characters that often begin with an escape character that tell the computer to perform a function or command

Question 13

Application development

Answer 13

process of planning, designing, creating, testing, and deploying a software application to perform various business operations

Question 14

Expression

Answer 14

combination of operators and operands that is interpreted to produce some other value

Question 15

Float

Answer 15

Python float () function is used to return a floating-point number from a number or a string representation of a numeric value

Question 16

Immutable

Answer 16

immutable objects are in-built datatypes (int, float, bool, string, Unicode, and tuple)
they cannot be changed after they are created

Question 17

Integer

Answer 17

whole numbers (+, 0, -)

Question 18

Manipulate

Answer 18

process of modifying a string or creating a new string by making changes to existing strings

Question 19

Mathematical operations

Answer 19

calculating a value using operands and a math operator

Question 20

Negative indexing

Answer 20

allows you to access elements of a sequence from the end, using negative numbers as indexes (-1 starting from last element R > L)

Question 21

Operands

Answer 21

quantity on which an operation is done

Question 22

Operators in Python

Answer 22

perform operations on variables and values

Question 23

Replicate

Answer 23

make exact copy of

Question 24

Sequence

Answer 24

function whose domain is an interval of integers

Question 25

Slicing in Python

Answer 25

return a portion from defined list
name[x:y:z] x (start pt), y (end pt), z (stride)

Question 26

Special characters

Answer 26

one that is not considered a # or letter (symbols, accent marks, punctuation marks)

Question 27

Stride value

Answer 27

of bytes from one row of pixels in memory to the next row of pixels in memory

Question 28

Strings in Python

Answer 28

words

Question 29

Substring

Answer 29

sequence of characters that are part of an original string

Question 29

Type casting

Answer 29

process of converting one data type to another data type (aka Type coercion/conversion)

Question 30

Types in Python

Answer 30

data types represent the kind of value that tells what operations can be performed on particular data

Question 31

#

Answer 31

comment - ignored by Python executing code

Question 32

Indexing

Answer 32

my_string = “Michael”
mystring[0:4]
Mich

Question 33

Length

Answer 33

len(string_name)

Question 34

convert string to lowercase

Answer 34

lower()
my_string.lower()

Question 35

Print message or variable inside ()

Answer 35

print(“ “)
a = “1”
b = “2”
print (a+b)
12

Question 36

addition operator

Answer 36

+sub

Question 37

subtraction operator

Answer 37

-

Question 38

multiplication operator

Answer 38

*

Question 39

division operator

Answer 39

/

Question 40

floor division operator

Answer 40

//
division truncated after decimal

Question 41

modulo operator

Answer 41

% (remainder of division)

Question 42

replace substrings

Answer 42

replace()

string1 = “Hello”
string2 = string1.replace(“Hello”, “Hi”)

Question 43

extract a portion of string

Answer 43

slicing
my_string = “Hello, world”
substring = my_string[0:5]

Question 44

split string into a list based on delimiter

Answer 44

split()

split_text = my_string.split(“,”)

Question 45

convert string to uppercase

Answer 45

upper()

my_string.upper()

Question 46

remove leading/trailing whitespace

Answer 46

strip()

s1.strip()